Token scope - Read & write subscription contracts

Rate limit - Global pool (i.e. 10 requests per second per domain)

pricingType- The pricing type to be applied to the subscription line item.
- SELLING_PLAN - The line item price is derived from the selling plan associated with the subscription.
- CUSTOM - Allows you to apply a custom discount to the line item using the customDiscount object. The discounted price is calculated based on the discount configuration provided.
customDiscount - The custom discount to be associated with the line which is being edited.
- For PERCENTAGE, provide a whole number (for example, 15 for a 15% discount). Decimal values are not supported due to Shopify limitations.
- For FIXED_PRICE, provide the fixed amount to be deducted from the line item price.
- For PRICE, provide the final price that should be charged for the line item.
sellingPlanGroupId - The sellingPlanGroupId refers to the selling plan group ID associated with the variant that will be added.
- If the sellingPlanGroupId is not provided, the system will assign the plan based on the priority of the available selling plan groups.
- If the provided sellingPlanGroupId is invalid or does not exist, an error will be thrown.